ROTJXDHEADED APPLE-TREE BORER. 



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Fig. 2. — gaperda Candida. Plats of Darnall orchard illustrating distance of flight of 

 female beetles during oviposition. Circles represent location of infested trees and 

 the figures within them show number of borers found. No beetles were allowed to 

 develop within 600 feet of the orchard. Plat 1 : Position of infested trees and 

 number of borers found at first examination (1914). Trees contained 106 young 

 borers and 35 from eggs of previous seasons. Plat 2 : Position of 56 borers devel- 

 oping from eggs deposited in 1915 by beetles that had flown into the orchard 

 from outside the 600-foot strip. Plat 3 : Position of one egg deposited by female 

 which entered the orchard from outside the 600-foot strip in 1916. Plat 4 : Posi- 

 tion of 44 eggs deposited by beetles which entered the orchard from outside the 

 600-foot strip in 1917. 



